The final version of OmniOutliner 3.7.2 is now available. There's only one change in this version and that's to undo a change we made in 3.7.1 that for currently unknown reasons rendered some people unable to drag rows. Sorry if you were one of them!
You can download 3.7.2 here and view the release notes. And please feel free to contact us if you have any problems by using the Help -> Send Feedback option in the app or by sending an email to firstname.lastname@example.org.